Table 1: Demographic characteristics in case and control groups.

VariableCases ()Controls ()

Marriage
 Yes 82 (94.25)86 (98.85)0.211
 No5 (5.75)1 (1.15)
Menopause
 Yes 6 (6.90)0 (0)0.029
 No81 (93.10)87 (100)
Hypertension
 Yes 5 (5.75)0 (0)0.059
 No82 (94.25)87 (100)
Diabetes mellitus
 Yes 5 (5.75)0 (0)0.059
 No82 (94.25)87 (100)
Heart diseases
 Yes 4 (4.60)0 (0)0.121
 No83 (95.40)87 (100)
Passive smoking
 Yes 23 (46.94)16 (35.56)0.263
 No26 (53.06)29 (64.44)
History of allergies
 Yes 9 (10.34)7 (8.05)0.670
 No78 (89.66)80 (91.95)

Note. Data are number (%) of patients.
values were determined with the chi-square test.